True enough. But we've been here before. Multiple times. One of my favorites was when we built a bunch of corvettes (ships) for the Israelis to thank them for staying out of the Gulf War, because if they had joined in then Turkey was gonna pile on...and if Turkey had piled on, then...well, you get the picture.
It may be smart, or it may be dumb, but Biden unequivocally (though unilaterally) expanding NATO to include Taiwan (and yes, I know what I'm saying but if you think that China attacking Taiwan, and the US getting involved, doesn't drag the UK and others in, then...) may have been helpful in wedging a little daylight between Vladdy and Xi on the Ukraine issue. Especially since Russia will be no help to the Chinese if the poo ever hits the fan. As others have said, Russia is the second greatest military in Ukraine.